The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2003
Filed:
Nov. 25, 1998
Applicant:
Inventors:
Jiro Kinoshita, Yamanashi, JP;
Yutaka Muraoka, Yamanashi, JP;
Assignee:
Fanuc Ltd., Yamanashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 1/302 ;
U.S. Cl.
CPC ...
G05B 1/302 ;
Abstract
A controller capable of monitoring a receiving circuit for receiving machine information. Machine information from a machine is received by a plurality of independent systems and the external signals received by the plurality of systems are compared, thereby, a receiving state of the receiving circuit is monitored. The controller includes a plurality of independent receiving units for receiving the external signal and monitoring units for comparing signals received by the plurality of receiving units, to monitor the receiving units based on a result of the comparison.